As far as I have ever heard, you must collapse the wave function to measure a Q-bit, and that is when entanglement always stops. However if we can create system

As far as I have ever heard, you must collapse the wave function to measure a Q-bit, and that is when entanglement always stops. However if we can create systems where a collapse can always 'retrigger' a new entanglement we could theoretically create computers that run at the Planc Time as the clock rate, but we don't know how to do that yet. That's decades off, or centuries.